Loved the concept of the character, it has a lot of potential. That Knife catching mechanic is just *muac* chef's kiss, great. He resembles Ryougi Shiki from Melty Blood quite a bit and i love it, which is why i'll try to offer some opinions that might improve the gameplay: First, i believe this character should have a very specific game plan, which is, keep catching and throwing the knife to maximize combo potential and kill opportunities, so, the cooldown right now is too much, you can see it while trying to recover and "missing" the knife window, or getting it stuck by the wall usually means death, most base cast Rivals have a LOT of chances to recover, so trying to increase his recovery options might be worth the time, secondly, normals. Up Tilt; increase hitbox so it hits behind Hassan, Back air, for a hitbox that small, the reward should be increased for hitting it but, balance wise, it might be better to increase the size of the hitbox, so it's on par with Forsburn's backair, because right now, it's almost impossible to hit crouching small opponents with it, you could also copy MORA's Back air hitboxes and it'd work too.

All in all, it might be a better idea to let him use and place the knife more freely for a much engaging gameplay rhythm, think of Maypul's watcher's mark as an example, if you keep the opponent marked, your combos get extensions, you get mix-ups and kill opportunities, same with hassan, having more angles to throw the Knife (like Mollo or even better, Vi), making it a combo option rather than a kill option might be the best move here for you, if kife teleporting is made weaker but faster and his normals become a more reliable kill option, then you can improve the feel of your character.

Well, that's more or less what i think could be done from a few hours of testing, once again, it's a really interesting concept, to " throw-catch-throw" is incredibly fun, have a look at Ryougi Shiki's knife combos on Youtube, it might help you get some ideas.

Thank you for making a fun and interesting character.

That's a great and detailed feedback thank you so much!

So, what I have planned for now is to reduce the base knockback for some attacks:
F-Tilt, Dash Attack, U-Strong, U-Air, B-Air (might just increase the hitbox size), and the teleport attack. A lot of these attacks have higher knockback than needed.

About the knife's cooldown, I added that because i felt like his recovery would be crazy good if he just throws and teleports to the knife over and over. It does reset if you hit with the teleport slash.
And adding more angles for throwing.. maybe i'll increase maximum angle for U-Special a little and add angling for F-Special.

His game plan is like to stack as much bleed and consume it with his fatal hits for easier kills

Agreed, Ftilt and UpAir need a little tweak. This next part probably goes in Burt report: If you try to teleport to a placed knife that's JUST about to dissapear, you lose the dash midway and get stuck into special fall, costing you a stock, even if you manage to touch the wall, given the 2-3 second cooldown on the knife, you have no way to make it back.Imagine tryinig to recover against several Down air´s from Clairen or forsburn, the 2 second cooldown means that they can just try to keep you off-stage and you'll lose on your own.
This illustrates again the point that, maybe nerfing some of his normals and polishing more the knife mechanic, could be a nice idea, since he has some overtuned normals and the knife has too much of a risk to use comfortably. Also, in the previous scenario, a Side B could balance most of his recovery shortcomings, and since you already have animations and an attack that's "special" enough to be a SideB, you could kill two birds with one stone and make Dash attack a standard side B.

Regarding knife cooldown: Throwing and actually hitting an opponent with it has a weird risk reward because, yes, the cooldown resets if you HIT the afterwards slash, but it's a slow move that's very hard to link with the knife's throw, hitting this in neutral or even in combos is really hard against seasoned opponents and if you miss the slash off-stage, you're pretty much dead.

Again, you did a great job with this char, i see potential in it, so i hope this suggestions are of use to you to bring Hassan up to the level of balance most of the base cast has so that maybe your character gets included in workshop tournaments.

Cheers and happy holidays :D

P.D: Seriously, giving him dash Side B for recovery will balance out a lot of his issues. Bonus hype for making knife teleport a combo move with no- special fall so that his standardized normals shine more.

Gonna see what I can do sometime but not right now. But if anything, I might give him a small dash that you can aim when his knife is on cooldown. Also, about the pratfall after teleporting, I'll ask other people if it's ok if I remove that. Since because he will have no pratfall at all. Thank you again!